We are using Chatter Answers in our Community. It would be great if we could specifiy what the default sorting is for our answers. Right now it is stuck on Solved Questions / Most Popular, just like the Success Community. Which people have requested here (https://success.salesforce.com/ideaView?id=08730000000kyxaAAA)
My suggestion would be to add a DefaultFilter option to this component:
The filterOptions only allows you to specify what filters are available.